Expand FrameSeleciton::isCaret() to increase chances of hoisting update layout

third_party/WebKit/Source/core/editing/spellcheck/SpellChecker.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 622 matching lines @@
   TextCheckingParagraph paragraph(request->checkingRange(),
                                   request->checkingRange());
 
   // TODO(xiaochengh): The following comment does not match the current behavior
   // and should be rewritten.
   // Expand the range to encompass entire paragraphs, since text checking needs
   // that much context.
   int selectionOffset = 0;
   int ambiguousBoundaryOffset = -1;
 
-  if (frame().selection().isCaret()) {
+  if (frame()
+          .selection()
+          .computeVisibleSelectionInDOMTreeDeprecated()
+          .isCaret()) {
     // TODO(xiaochengh): The following comment does not match the current
     // behavior and should be rewritten.
     // Attempt to save the caret position so we can restore it later if needed
     const Position& caretPosition = frame().selection().end();
     selectionOffset = paragraph.offsetTo(caretPosition);
     if (selectionOffset > 0 &&
         static_cast<unsigned>(selectionOffset) <= paragraph.text().length() &&
         isAmbiguousBoundaryCharacter(
             paragraph.textCharAt(selectionOffset - 1))) {
       ambiguousBoundaryOffset = selectionOffset - 1;
@@ skipping 555 matching lines @@
         startOfNextParagraph(createVisiblePosition(paragraphEnd));
     paragraphStart = newParagraphStart.toParentAnchoredPosition();
     paragraphEnd = endOfParagraph(newParagraphStart).toParentAnchoredPosition();
     firstIteration = false;
     totalLengthProcessed += currentLength;
   }
   return std::make_pair(firstFoundItem, firstFoundOffset);
 }
 
 }  // namespace blink